Answer:
Christopher Columbus may have stumbled upon the Americas, but his accidental discovery has changed the course of history.
The Italian explorer's travels bridged the gap between Europe and the New World, but his curiosity also marked the beginning of centuries of transatlantic colonization.
It is most likely because he believed that they could cause unnecessary conflict... that is just my educated guess
1492 is the correct answer.
Arid and semi-arid regions often have to go through long periods of drought.A drought is basically a situation in which an area of land gets insufficient rainfall, causing a lot of suffering to those who inhabit these regions. Some of these drought-prone areas include deserts of Australia, parts of India and Sudan among others.
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